Fadel Adib
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View article: MiNav: Autonomous Drone Navigation Indoors Using Millimeter-Waves
MiNav: Autonomous Drone Navigation Indoors Using Millimeter-Waves Open
We present the design, implementation, and evaluation of MiNav, a system capable of accurate, efficient and fully autonomous drone navigation in challenging indoor environments, including those where vision-based systems fail. MiNav builds…
View article: MITO: A Millimeter-Wave Dataset and Simulator for Non-Line-of-Sight Perception
MITO: A Millimeter-Wave Dataset and Simulator for Non-Line-of-Sight Perception Open
The ability to observe the world is fundamental to reasoning and making informed decisions on how to interact with the environment. However, optical perception can often be disrupted due to common occurrences, such as occlusions, which can…
View article: 3D Self-Localization of Drones using a Single Millimeter-Wave Anchor
3D Self-Localization of Drones using a Single Millimeter-Wave Anchor Open
We present the design, implementation, and evaluation of MiFly, a self-localization system for autonomous drones that works across indoor and outdoor environments, including low-visibility, dark, and GPS-denied settings. MiFly performs 6Do…
View article: The Underwater Backscatter Channel: Theory, Link Budget, and Experimental Validation
The Underwater Backscatter Channel: Theory, Link Budget, and Experimental Validation Open
Underwater backscatter is a recent networking technology that enables net-zero-power communication and sensing in underwater environments. Existing research on underwater backscatter has focused on designing and demonstrating early systems…
View article: FuseBot: mechanical search of rigid and deformable objects via multi-modal perception
FuseBot: mechanical search of rigid and deformable objects via multi-modal perception Open
Mechanical search is a robotic problem where a robot needs to retrieve a target item that is partially or fully-occluded from its camera. State-of-the-art approaches for mechanical search either require an expensive search process to find …
View article: Enabling Long-Range Underwater Backscatter via Van Atta Acoustic Networks
Enabling Long-Range Underwater Backscatter via Van Atta Acoustic Networks Open
We present the design, implementation, and evaluation of Van Atta Acoustic Backscatter (VAB), a technology that enables long-range, ultra-low-power networking in underwater environments. At the core of VAB is a novel, scalable underwater b…
View article: A Handheld Fine-Grained RFID Localization System with Complex-Controlled Polarization
A Handheld Fine-Grained RFID Localization System with Complex-Controlled Polarization Open
There is much interest in fine-grained RFID localization systems. Existing systems for accurate localization typically require infrastructure, either in the form of extensive reference tags or many antennas (e.g., antenna arrays) to locali…
View article: A Handheld Fine-Grained RFID Localization System with Complex-Controlled Polarization
A Handheld Fine-Grained RFID Localization System with Complex-Controlled Polarization Open
There is much interest in fine-grained RFID localization systems. Existing systems for accurate localization typically require infrastructure, either in the form of extensive reference tags or many antennas (e.g., antenna arrays) to locali…
View article: FuseBot: Mechanical Search of Rigid and Deformable Objects via Multi-Modal Perception
FuseBot: Mechanical Search of Rigid and Deformable Objects via Multi-Modal Perception Open
Mechanical search is a robotic problem where a robot needs to retrieve a target item that is partially or fully-occluded from its camera. State-of-the-art approaches for mechanical search either require an expensive search process to find …
View article: Batteryless, Wireless, and Secure SoC for Implantable Strain Sensing
Batteryless, Wireless, and Secure SoC for Implantable Strain Sensing Open
The past few years have witnessed a growing interest in wireless and batteryless implants, due to their potential in long-term biomedical monitoring of in-body conditions, such as internal organ movements, bladder pressure, and gastrointes…
View article: Demo: Enabling Battery-Free Wireless Underwater Imaging
Demo: Enabling Battery-Free Wireless Underwater Imaging Open
This demo presents a system for real-time wireless imaging of underwater environments using a fully-submerged battery-free camera. The camera powers up from harvested acoustic energy, captures images using an ultra-low-power image sensor, …
View article: Battery-free wireless imaging of underwater environments
Battery-free wireless imaging of underwater environments Open
Imaging underwater environments is of great importance to marine sciences, sustainability, climatology, defense, robotics, geology, space exploration, and food security. Despite advances in underwater imaging, most of the ocean and marine …
View article: WaterHCI: Exploring the intersection between water, humans, and technology
WaterHCI: Exploring the intersection between water, humans, and technology Open
WaterHCI (Water-Human-Computer Interaction) is a field of study and practice focusing on the design and creation of interactive devices, systems, and experiences at the intersection of water, humans, and technology. It is a relatively new …
View article: Towards battery-free machine learning and inference in underwater environments
Towards battery-free machine learning and inference in underwater environments Open
This paper is motivated by a simple question: Can we design and build battery-free devices capable of machine learning and inference in underwater environments? An affirmative answer to this question would have significant implications for…
View article: RFusion
RFusion Open
We present the design, implementation, and evaluation of RFusion, a robotic system that can search for and retrieve RFID-tagged items in line-of-sight, non-line-of-sight, and fully-occluded settings. RFusion consists of a robotic arm that …
View article: Robotic Grasping of Fully-Occluded Objects using RF Perception
Robotic Grasping of Fully-Occluded Objects using RF Perception Open
We present the design, implementation, and evaluation of RF-Grasp, a robotic system that can grasp fully-occluded objects in unknown and unstructured environments. Unlike prior systems that are constrained by the line-of-sight perception o…
View article: A Scalable Solution for Signaling Face Touches to Reduce the Spread of Surface-based Pathogens
A Scalable Solution for Signaling Face Touches to Reduce the Spread of Surface-based Pathogens Open
Hand-to-Face transmission has been estimated to be a minority, yet non-negligible, vector of COVID-19 transmission and a major vector for multiple other pathogens. At the same time, as it cannot be effectively addressed with mainstream pro…
View article: Underwater Backscatter Localization
Underwater Backscatter Localization Open
Can we build a battery-free underwater GPS? While underwater localization is a long-studied problem, in this paper, we seek to bring it to battery-free underwater networks. These recently-introduced networks communicate by simply backscatt…
View article: Contactless seismocardiography via deep learning radars
Contactless seismocardiography via deep learning radars Open
The seismocardiogram (SCG) is a recording of a human heart's mechanical activity. It captures fine-grained cardiovascular events such as the opening and closing of heart valves and the contraction and relaxation of heart chambers. Today, S…
View article: Self-reconfigurable micro-implants for cross-tissue wireless and batteryless connectivity
Self-reconfigurable micro-implants for cross-tissue wireless and batteryless connectivity Open
We present the design, implementation, and evaluation of μmedIC, a fully-integrated wireless and batteryless micro-implanted sensor. The sensor powers up by harvesting energy from RF signals and communicates at near-zero power via backscat…
View article: Ultra-Wideband Underwater Backscatter via Piezoelectric Metamaterials
Ultra-Wideband Underwater Backscatter via Piezoelectric Metamaterials Open
We present the design, implementation, and evaluation of U2B, a technology that enables ultra-wideband backscatter in underwater environments. At the core of U2B's design is a novel metamaterialinspired transducer for underwater backscatte…
View article: Underwater backscatter networking
Underwater backscatter networking Open
We present Piezo-Acoustic Backscatter (PAB), the first technology that enables backscatter networking in underwater environments. PAB relies on the piezoelectric effect to enable underwater communication and sensing at near-zero power. Its…
View article: 3D Backscatter Localization for Fine-Grained Robotics
3D Backscatter Localization for Fine-Grained Robotics Open
Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2019
View article: Learning Food Quality and Safety from Wireless Stickers
Learning Food Quality and Safety from Wireless Stickers Open
Can we sense food quality and safety using wireless signals? In this paper, we explore how we can discover properties of a container's contents without opening it and without any physical contact with its contents. Our idea is to exploit e…